Modem How does the modulation de-modulation process work?
Modulation is when a modem converts digital signals sent from a computer into analog signals for suitable transmission on a telephone line. When this signal is recieved by another modem, it reverses this process convedrting analog signals into digital signals for a recieving computer, this process is known as de-modulation. What is the difference between ADSL and dial-up modems?
An ADSL modemnis a way to access the internet through a company while dial-up modem is a way to access internet through a phone line.
ADSL
Dail-up
- ability to use phone and internet at once - continous connection
- faster speeds
- ability for mulitple user to use it at once
- not mobile as you can't connect rhough telephone line
- Inexpensive - Reliable and stable
- mobile through any regular telephone
- Uses Telephone Line, so you cannot use phone while using internet
- Slower Connection Speeds
Create an image of how modems are involved in sending and receiving data
How does the modulation de-modulation process work?
Modulation is when a modem converts digital signals sent from a computer into analog signals for suitable transmission on a telephone line. When this signal is recieved by another modem, it reverses this process convedrting analog signals into digital signals for a recieving computer, this process is known as de-modulation.
What is the difference between ADSL and dial-up modems?
An ADSL modemnis a way to access the internet through a company while dial-up modem is a way to access internet through a phone line.
- faster speeds
- ability for mulitple user to use it at once
- not mobile as you can't connect rhough telephone line
- mobile through any regular telephone
- Uses Telephone Line, so you cannot use phone while using internet
- Slower Connection Speeds